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@whitequark

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@whitequark

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Recommended by 2 HN userstechnical
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Why Hacker News recommends it

3 comments from 2 distinct recommending readers, between 2019 and 2019.

  1. @floatbothRecommends2019
    Thunderbolt is a horrendous piece of garbage. Not just in the sense of "we're making an internal bus external before ensuring security", but just in what it actually is: twitter.com/whitequark/status/109777710… > Thunderbolt, uh, does not expose PCIe lanes directly. Thunderbolt is an MPLS-like packet switching network that can encapsulate PCIe TLPs over a PHY and MAC without a spec, chips without documentation, and software with barely any support. […] Ah, and let's not forget that the absurdly complicated MPLS-like system with topology written in EEPROMs in every node that, as far as I can tell, you have to bitbang via the half-configured packet path (what the actual fuck?), well, it's very general. You can describe a lot of different networks in it. But of course the Linux driver has two or three hardcoded ones, including indexes into the EEPROMs on the way, that it recognizes and loads a hardcoded configuration for. The entire thing is made -even worse than USB-, which is an achievement. It pains me to hear people complaining about the lack of Thunderbolt in AMD Ryzen Mobile laptops, and wishing for it in the next generation now that the spec is no longer Intel-exclusive in some way. Lack of Thunderbolt is a feature.
    Struck by a ThunderboltRead the thread
  2. @alacombeRecommends2019
    This is a poisoned gift, there was a twitter conversation posted a couple weeks ago about the cluterf*ck that thunderbolt is... quite a scary read :-/ twitter.com/whitequark/status/109777710…
    USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USBRead the thread
  3. @rjeliCites it2019
    Not quite: twitter.com/whitequark/status/109777710… "Thunderbolt, uh, does not expose PCIe lanes directly. Thunderbolt is an MPLS-like packet switching network that can encapsulate PCIe TLPs over a PHY and MAC without a spec, chips without documentation, and software with barely any support."
    USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USBRead the thread

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